Of course, I haven't had any sound at all, anywhere since I upgraded to Hardy, and I haven't had enough bandwidth-quota available to download the 300MB or so of updates that have been released since the Hardy Beta, so I can't really complain.
Wow, this is embarrassing.
It turns out that where 'mute' used to be a volume of 0 and 'comfortable' used to be a volume of '60' or so, now 'mute' is a volume of 75 and 'comfortable' is a volume of 80. So I turned up the volume, and now I get sound.
(installing all the available Hardy updates last night probably didn't hurt, either)
The biggest problem with it is that Linux evangelists are intentionally compiling all new applications with OSS support removed -- forcing everyone to migrate to ALSA.
...where by "Linux evangelists", I guess you mean "Ubuntu's official packagers", by "all new applications" you mean "existing applications officially supported by Ubuntu", and by "forcing everyone" you mean "forcing Ubuntu users". If Ubuntu decides that the simplest and most comprehensive sound configuration for their distribution is ALSA, and they update all the software in that distribution to comply, then I guess that's their business. If you want a distribution that doesn't decide these things for you, there's always LinuxFromScratch